UA 2617 then UA 3754 at Houston
New York LaGuardia → Houston → Waco
Timetable, Houston time
13:27UA 2617 from New York LaGuardia at the gate
11:30UA 3754 to Waco leaves the gate
22 h 03 apart on the timetable, overnight
UA 3754 leaves 22 h 03 after UA 2617 arrives on the timetable: more than half a day, so not a connection we count.